LEAP#303 Keyboard Matrix Module
I picked up one of these 4x4 Independent Keyboard Matrix modules to see how useful it might be for arbitrary input with a microcontroller.
I examine how it is constructed, and provide some examples of how to make it work:
LedControl - controlling the LEDs;
KeyMatrixInput - multiplexed key input;
SwitchInterrupts - interrupt-driven switch input.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
read more and comment..
LEAP#302 Game of Life on the Boldport Club Matrix
This is a quick and dirty implementation of Conway’s Game of Life on the Boldport Matrix, mainly to learn a bit more about using the AS1130 LED driver. As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
read more and comment..
LEAP#301 DHT11 Sensor Basics
The DHT11 sensor is a very cheap and common sensor that provides readings of relative humidity (20-80% ±5%)
and temperature (0-50°C ±2°C). For a first test, I’m using a simple DHT11 library from the arduino playground.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
read more and comment..
LEAP#300 The Matrix LED Test
The
LRAS1130 Arduino library from @luckyresistor
is an easy way to get started with the BoldportClub Matrix and an Arduino.
I’m using a slightly modified version of the LedTest sketch from the library here.
LED test = all passing!
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
read more and comment..